首页
登录
职称英语
Researchers have identified 1. 4 million animal species so far—and millions
Researchers have identified 1. 4 million animal species so far—and millions
游客
2024-02-20
20
管理
问题
Researchers have identified 1. 4 million animal species so far—and millions remain to be discovered, named, and scientifically described. So how much would it actually cost to【S1】______every animal on Earth? A pair of Brazilian scientists has crunched (详细计算) the numbers and【S2】______up with an answer: $263 billion.
That’s way more than the $ 5 billion that famed Harvard University biologist Edward O. Wilson estimated back in 2000—and that was for every species on Earth, not just animals. But even $ 263 billion would be a【S3】______price to pay to understand the creatures that【S4】______such essentials as agriculture, fisheries, new drugs, and energy sources, says ornithologist (鸟类学家) Joel Cracraft of the American Museum of Natural History in New York City. "Literally, the world economy runs on biodiversity," he says. "People don’t understand really, deeply how much we depend on biodiversity."
Most biologists agree that with extinction rates【S5】______and climate change looming, the【S6】______to document the planet’s biodiversity—or biota (生物区)—is urgent,【S7】______considering the essential role these life forms play in crop pollination, clean air, and other aspects of human【S8】______"We are losing species by extinction faster than we are describing new species" according to some estimates, says biologist Antonio Marques, who【S9】______the new paper with Fernando Carbayo, both at the University of St. Paulo in Brazil. "We have to know the biota to preserve and conserve the biota," he says.
Besides the money, another huge【S10】______to a complete understanding of the animal kingdom is a global shortage of taxonomists (分类学家), experts say.
A) obstacle F) cheaper K) attempt
B) classify G) enable L) coauthored
C) especially H) come M) soaring
D) effort I) small N) well-being
E) identify J) exactly O) yet [br] 【S1】
选项
答案
E
解析
动词辨析题。空格前面为动词不定式符号to。而空格后为名词短语,说明此处需填动词。文章第一句说研究人员已经确定了很多种动物种类,但仍有成千上万的种类等待被发现。所以第二句承接前一句的意思.问到要识别这些动物种类需要花费多少钱。因此动词identify“识别;确定”符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/3468485.html
相关试题推荐
GoingonlineisafavoritepastimeformillionsofAmericanchildren.Almost
GoingonlineisafavoritepastimeformillionsofAmericanchildren.Almost
GoingonlineisafavoritepastimeformillionsofAmericanchildren.Almost
GoingonlineisafavoritepastimeformillionsofAmericanchildren.Almost
ResearchersinLondonandBristolhavefoundthatmenareparticularlylikel
ResearchersinLondonandBristolhavefoundthatmenareparticularlylikel
Americantravelersplantotake10millionmoretripsthissummerthanlast,
Americantravelersplantotake10millionmoretripsthissummerthanlast,
Fiftyyearsago,wealthypeoplelikedhuntingwildanimalsforfun____________
Itisacuriousphenomenonofnaturethatonlytwospeciespracticetheart
随机试题
Ifyouexhibitpositivetraitssuchashonestyandhelpfulness,thechances
Anysufficientlyadvancedtechnology,not
()高清晰度电视是一个透明系统,一个正常视力的观众在距该系统显示屏高度的倍距离上
关于下肢静脉的解剖特点,下列选项不正确的是A.大隐静脉起自足背静脉网内侧,沿下肢
上述各项,属法定甲类传染病的是( )。A.风疹 B.流行性感冒 C.霍乱
皮肤黏膜淋巴结综合征之气营两燔证的治疗方剂为( )。A.败毒散 B.桑杏汤
对成膜材料的要求不包括A:成膜、脱膜性能好 B:成膜后有足够的强度和韧性 C
2004年,该县的第三产业的实收资本是()。A.96049.6万元 B
某总建筑面积为5000m2的商场,采用干式自动喷水灭火系统,该系统的作用面积不应
一住店客人未付房钱即想离开旅馆去车站。旅馆服务员揪住他不让走,并打报警电话。客人
最新回复
(
0
)